Cottonwood, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottonwood, a city in Idaho County, Idaho.
Overnight
35°F
Mostly Cloudy
Mostly cloudy, with a low around 35. West northwest wind around 3 mph.
7-day forecast for Cottonwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Mostly Cloudy | 3 mph WNW | 2% |
| Wednesday | 49°F | Sunny | 3 mph NE | 0% |
| Wednesday Night | 35°F | Partly Cloudy then Chance Light Rain | 5 mph SW | 48% |
| Thursday | 46°F | Chance Light Rain | 3 to 7 mph SW | 48% |
| Thursday Night | 33°F | Partly Cloudy | 3 to 7 mph SSW | 3% |
| Friday | 50°F | Partly Sunny | 5 to 8 mph SSW | 5% |
| Friday Night | 39°F | Mostly Cloudy | 5 to 10 mph SSW | 5% |
| Saturday | 58°F | Partly Sunny | 7 mph S | 3% |
| Saturday Night | 41°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 15 mph SSW | 18% |
| Sunday | 55°F | Slight Chance Light Rain | 5 to 13 mph WSW | 18% |
| Sunday Night | 39°F | Mostly Cloudy | 5 mph WSW | 10% |
| Monday | 53°F | Mostly Cloudy then Slight Chance Light Rain | 3 mph SE | 15% |
| Monday Night | 41°F | Slight Chance Light Rain | 2 to 6 mph WSW | 15% |
| Tuesday | 55°F | Partly Sunny then Slight Chance Light Rain | 6 mph SSW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Cottonwood (46.051, -116.350). Updated through the day.
Growing snapshot for Cottonwood
Last spring frost
May 6
First fall frost
Oct 13
Growing season
156 days
Hardiness zone
6a
More local growing data for Cottonwood: nearby ZIP 83526 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cottonwood 2 Wsw, Id (7.9 mi from Cottonwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.